Aquaponic Gardening

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Tom Richardson's Discussions (3)

Discussions Replied To (1) Replies Latest Activity

"KJ I think you are right on. I use a $1200 D.O. meter which reads up to 100ppm. The…"

Tom Richardson replied Oct 3, 2010 to Dissolved Oxygen Importance

4 Mar 3, 2011
Reply by Harold Sukhbir

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